honda Workshop Repair Guides

Honda Workshop Service and Repair Manuals

Speed Pulser <--> [Vehicle Speed Sensor] > < Vacuum Switches
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Vacuum Switch: Testing and Inspection
Control Switch

1.

Push voltmeter positive probe into brown wire terminal at emissions box No. 1 white connector and connect negative probe to suitable ground.

2.

Start engine and check for voltage during deceleration.

3.

If voltage is not available, disconnect vacuum hose No. 1 from emissions box No. 1 and check for vacuum.

4.

If there is no vacuum, check vacuum line for leaks, blockage or disconnected hose and repeat test.

Speed Pulser <--> [Vehicle Speed Sensor] > < Vacuum Switches